Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.29.20.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure
Other
Aromatic or modified aromatic
Other
Drugs
2933.29.20.00
Rates of duty
- General rate (Column 1)
- 6%
- Special
- Free (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
- Column 2
- 15.4¢/kg + 51%
- Unit
- kg
- Printed page
- 1546
Measure flagsfor origin CN
- Section 301 China, L39903.88.03 · 25%
- Section 301 forced labor: on an exemption list9903.05.89 · note 52(e)
- Section 232 (PHARMA)9903.04.60 · 100% · 药品物品（第29章）：专利药成品 / API / 关键起始物料，按物品而非编码判定专利/仿制 · from 2026-07-31
- Partner government agency (PGA) requirementsFDA FD2, EPA EP7